201806003F01 : LPC8N04 Boot ROM Update to Support Over The Air (OTA)
The LPC8N04FHI24 Boot ROM will be updated.- Boot ROM version number is changed from version 0.12 to version 0.14.- Boot ROM was updated to support application vector checksum verification before booting the image. - Users migrating from previous version need to ensure that the reserved Cortex-M0+ exception vector location 7 (offset 0x 0000 001C in the vector table) contains the 2's complement of the check-sum of table entries 0 through 6.- Boot ROM code was updated to support OTA firmware update using Secondary Bootloader (SBL) library. See Tech Note TN00040: LPC8N04: Encrypted Over the Air (OTA) Firmware update using NFC.The following documents are updated to support this change.Data sheet: LPC8N04 v.1.4 https://www.nxp.com/docs/en/data-sheet/LPC8N04.pdfUser Manual: UM11074 v.1.2 https://www.nxp.com/docs/en/user-guide/UM11074.pdfTech Note: TN00040: LPC8N04: Encrypted Over the Air (OTA) Firmware update using NFC https://www.nxp.com/docs/en/application-note/TN00040.zip?fsrch=1&sr=1&pageNum=1
| PCN Type | Change Category | Issue Date | Effective Date |
|---|---|---|---|
| Final Product Change Notification | Firmware | 20-Jun-2018 | 30-Sep-2018 |
Reason of Change
To support OTA firmware update and application checksum verification.
Identification of Affected Products
Parts with date code 824 (workweek 1824) or later have firmware version 0.14. The date code can be seen on the part marking and packing labels.
Anticipated Impact
Data sheet revision: A new datasheet will be issued
No physical change to die or packaging. No Quality or Reliability impact. The user needs to include checksum verification.
Affected Parts
| Part Number / 12NC | Last Time Buy Date | Last Time Delivery Date | Replacement Part |
|---|---|---|---|
|
LPC8N04FHI24E (935359392551) |
- | - | - |
|
LPC8N04FHI24Z (935359392515) |
- | - | - |